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Holley Sniper EFI Stealth 4500 - Black
Holley Sniper EFI Stealth 4500 - Black
Holley Sniper EFI Stealth 4500 - Black
Holley Sniper EFI Stealth 4500 - Black
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Holley Sniper EFI Stealth 4500 - Black

550-842
Sniper EFI Kits
$2,587.95 $2,299.95
Holley Sniper EFI Stealth 4500 - BlackSupports Up To 1500HP - 3.5 in. Handheld Monitor -...
$2,299.95

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Holley Sniper EFI Stealth 4500 - Black
Holley Sniper EFI Stealth 4500 - Black

Supports Up To 1500HP - 3.5 in. Handheld Monitor - 8x100 LB/HR Injectors

Overview
Wanting to convert your Dragster or Pro-street vehicle to Fuel Injection? Sniper, the #1 Fuel Injection Conversion system has you covered with the Stealth 4500. Featuring 8 100LB/HR Fuel Injectors this kit is the perfect option for any build looking to make between 800-1500HP. We have many Sniper options for builds going from mild to wild. This is the perfect set up for the more extreme build with multiple input and output options for sensor inputs and switched outputs to control external relays. 2.125" throttle plates, flows 1440 CFM for larger cubic inch engines. Included 2.5BAR Map sensor and programmable launch control via 2-step which can be triggered by the trans-brake input. Simplicity is what we strive for when it comes to everything related to EFI conversion! Sniper is designed to be installed at home in your garage or driveway with limited tools and the support of Holley's comprehensive installation manual and videos. An afternoon in the garage and you will be enjoying improved engine performance, better MPG's and easier starting. You don't have to be a computer wiz or tuning professional to run a sniper kit on your build. Our calibration wizard allows you to just answer a few questions about your engine and the system will begin self-tuning with no laptop required. Use the high resolution 3.5" full color touchscreen for tuning and gauge displays. Once you made your conversion to EFI, don't stop there! Sniper is an Ecosystem! This kit pair's seamlessly together with Holley's Sniper Hyperspark Ignition, Fuel System's, Air Cleaners, Throttle Body Digital Dash to unlock the full potential of your build. For a full list of features benefits on what the Sniper Stealth 4500 has to offer, see below!

Not for use with engines producing less than 800 horsepower Gasoline Only Use of leaded race fuels may shorten the service life of the WBO2 sensor

Features:
  • Supports up to 1500HP Naturally Aspirated 1250HP Boosted!
  • Self-tuning ECU means you don??????t have to be a computer/tuning wiz to have EFI!
  • Simple Calibration Wizard (Answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required
  • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition RPM)
  • High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
  • Compatible with Draw through or Blow through forced induction applications
  • 2.125??? Throttle Plates, Flow 1440 CFM for large cubic inch engines
  • 2.5Bar MAP Sensor
  • Integrated ignition timing control
  • Programmable launch control via 2-step and timing retard. Both can be triggered by a trans-brake input
  • Gen 3 Ultra Dominator Style 4 Bolt Air Cleaner Flange
  • -8AN Fuel Inlets
  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn
  • Built-in Single Stage Wet or Dry progressive nitrous control
  • Three Programmable 0-5V Sensor Inputs for Oil/Fuel/Dome or Nitrous Pressure or other critical information
  • Six Programmable Ground Outputs, Five programmable ground inputs. These can be used to trigger or control external devices such as nitrous solenoids, boost control solenoids. Or to provide the ECU with an Input to turn on function such as an ignition timi
  • One +5v Reference Output - +5V Power Supply for 0-5v Sensors, One Sensor Ground ???? Ground supply for 0-5v Sensors
  • Throttle body mounted ECU ???? no extra boxes to mount
  • Required external fuel pressure regulator, 12-848 is recommended
  • Customizable secondary fuel pump output (TPS, RPM or Boost enabled)
  • User friendly Boost Control with handheld adjustability
  • Free Software included comprehensive datalogging tool to help you maximize the performance of your engine
  • Real-time datalogging to the included 3.5??? Touch Screen, allows you to save information to the SD card without needing a communication cable
  • Programmable Target Air Fuel Ratios per Boost level
  • Advanced boost control available via free Sniper EFI tuning software, including Boost vs RPM and Boost vs Time
  • OEM Style TPS/IAC, for years of dependable service
  • Included clamp-on oxygen sensor kit ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange


Details:
  • CFM: 1440
  • Coast Guard Approved: Yes
  • Finish: Black
  • Flange Size: 4500
  • Flange Style: 4500
  • Fuel Pressure: 58.5 PSI
  • Injector Size: 100 lb/hr @ 58.5 PSI
  • Inlet / Outlet Size: 8AN
  • MAP Sensor: 2.5Bar
  • Max Horsepower Rating: 1250 Forced Induction
  • Max Horsepower Rating: 1500 Naturally Aspirated
  • Throttle Bore: 2.125 inch


Links
Instruction Sheet
Quick Start Guide
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All products are shipped out from one of the Signature Autohaus shipping locations. Signature Autohaus drop ships some products and ships direct others. All products are shipped via FedEx, UPS, DHL or another qualified shipping carrier. Special arrangements may need to be made for international orders and oversize packages. In the event a product arrives damaged to your location, please follow the steps listed below. All damaged items must be reported to the shipping carrier immediately and you must notify Signature Autohaus within 5 days of receiving your order. If these steps are not followed, your shipment may not be able to be a candidate for a claim. Complete the Shipping DAMAGE Claim Form by contacting the carrier that delivered your package. 1) Keep the product and its original packaging and box Make a list of the damaged or lost item(s) 2) Signature Autohaus will contact the shipper once we receive the email info above to schedule a pickup, DO NOT send it back to us 3) Once the product is picked up and inspected by Signature Autohaus and or Supplier, a replacement or credit will be issued. 4) The Shipping Rates shown at time of checkout our dimensional rate only. If your shipment weight is to much then contact us for a shipping quote. If there is an error in the shipping rate quoted we will contact you and let you know of the changes. International orders(Outside the USA) are not automatically processed as we may require additional information from you. If a product is ordered and not wanted, the UNUSED item can be returned for a 35% restocking fee. Shipping is not refundable in either direction. All items wanting to be return MUST be reported within 30 days of the original invoice date. No items will be returnable after 30 days. All products shipped from the Signature Autohaus warehouse are shipped via FedEx or Freight and require a signature when delivered. Some packages shipped from the manufacturer may or may not require signatures for package release. Fedex, UPS, and DHL have package pick up locations if you are unable to sign for the package. If the package is returned to Signature Autohaus or manufacturer, you will be responsible for the return shipping costs and pay a 35% restocking fee. These fees will be charged to your account on file. SIGNATURE AUTOHAUS DOES NOT REFUND SHIPPING CHARGES. If you modify, install, or alter the item in any form, we cannot accept it as a return, will not cover any expenses related to the product or installation, and you maybe be required to purchase a replacement. In the event that the product you ordered is sent either incorrectly or processed wrong by Signature Autohaus, we will arrange for the package to come back to us and ship out a replacement. We will evaluate the situation before we determine the shipment was incorrect. To return a item back to us, please do the following: 1. Contact our Customer Service Department to receive a RMA number. All packages returned without a Returned Merchandise Authorization number will be refused. 2. Package the item up in original packaging unless deemed unuseable 3. Include the UNUSED parts and any additional information that was included 4. Include a copy of your receipt 5. Write a brief description of the problem with the product 6. If you have a receipt for the return shipping include as well 7. We DO NOT accept any freight collect packages 8. Once we have received the above information we will notify you via email or phone and let you know the status.

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